Starting crank hole closure



after said, shaft has been released :the

- tumblers for asialmoven ent.

A knob, a5, is riveted to theouter end of he respectivetumblers. The shaft s now the shaft for, conveniently rotating the same ;-the underside of said knob is-rece'ssed at 46 to permit the knob toibe telescoped over the bearing, 4,.of the cover, when the shaft is axially vmoved into unlocking position, as shown in Flgure 2,provid1ng atompaot arrangement. A notch, 47, is provided in the periphery of the knohforregist-rw tion withthe node,'32, aslan initial or;neu-

tralposition. Preferably the notch is radially alingned with the key, 9, and dog, l0, sothatthe relative positions thereof may be: readily ascertained. The exposed surface of the cover may be provided with suitable graduations, and for convenience, a

Series of equally spaced projections,48, are

formed on said cover,.positioned-to correspond to the number oflunits :otrotatio'n provided for by the ratchet wheel, 17, and

spring pawl, 20, assisting. in the rotation of the shaft to exact positions whenitis either light or dark. The number ofiprojections,

=48, including the node,'3 2, may'bethe same .as'the number of clicks of the wheel or'teeth [of the same, but are herein lshown as five projections and the node, '32, so that the distance between these points corresponds to two clicks of the: pawl and ratchet or onesixth of a revolution of the shaft.

The opening, 51,"in a wooden door, 52, or other mounting member need be only large enough to permit a sliding r fit oft he casing, 1. The front end ofthe' lock is supported' in a recessed bearing ring, T53, 'and the rearend of the lock iswsecujredto a mounting'plate,

54;, by three screws, '55,'-spaced betweenthe legs, 85, of the tumbler plate, 26. The

height of the bearing ringlnay'be Variedto suit-the thickness of the door. 'The mounting plate, 54, is secured at its marginal edges to the door by means of woo-d screws, 5 6.

lt-willofcourse be understood that the position of thelugs on the tumblers relative to their keyways determines t'he con ibin ation of the lock. These lugs which are positioned on the tumblers at points radially aligned with the teeth of the ratchetyl n ay be positionedat; any of the points otherthan the point supplanted by the keyway', andso may the positionofthenotch, '31, be interchanged with any ofthe notches,- 30.- Thus,

the possible number of different combinations thatm-ay be hadis relatively great.

- Thelock maybe madefor manipulation by commencing therotation of the parts in either direction; for example the operation may .be as follows: The knob,t5, is positioned with its notch,n47,ali-gned with the node, 32; then rotating to the rightthree with. i iet-shasit iwhieh results "from the dog,

on the sha tengaging the. lug, 11*, cans ing thelug, l1), {to-drive the. lug, 12 and the .lug, 12 to engage the lug, 13%,;to rotate rotated inthe same direction to a predetera mined positionat which the .keyway of the tumbler, 13-, is aligned with the notc-l1,311, in the tumbler plate, 26. The shaft isth en reversed in rotation through two complete turnsto the left, and the necessary portion of a third turnto align the notch, 47, with the node, 32, (the tumbler, l3, remaining in a fixed position) and a continuedturnan remaining. stationary) and continued .turning to the rightbrings the partsto a predeterm nedpositionin which ,the k yway (if "the. tumbler, 11,,is aligned; with .keyways Jot tumblers, ,-12: aI-:1d'13,and n tch, 1. 'lghen with the threeit lmblers, 11, 12ands13 pr p- .erly aligned and fixed, the. shaft is reversed and rotated togthe left to a predetermined po ition, at which position the k y, and

e ee 1.0,. re in i e w h e ys- A, ofthe tumblers and notch,; 3l, of the plate,

.26, i s that, th shaft may be pushed in Wardly, the] key, 9,. V passing. through the ways, 11%, ofifthetumblers, 11, I2, and. 1 end thedog, 10,,passing through the notch, 3 1, permitting the slot, 6, in the end ofthe'shaft to. e gage the peratingbar, 7; .thena by an additional slight turn of knobfihenight lat h, 8,.n1ay be. e1eased.'

If idesired,the loch may be maintained inopen position against the reaction of the ter ers, ta Pe n the ta r e .ofthe dog, 10., to. ,fr-ietionally engage the unde side of the p ate, 2.6 The, mechanism may be;thrownintolockingposition:by turnmg thel'rneb until the keyand dog Bare I al g e'd' for, withdrawing rearwardly through their respective ava s and notch,

"t -a slight turn. otthe sha t by the knob in eitherdi'rection will clestroyntheset'ting of the tumblers, e, t

It will now be clear that if the first. three parts of the.cambinationflare -l'znown, by

[which the ways of the tumbl'ers,-L1, 12, and

13' may be aligned, an attemptto pushthe shaft inwardly will be paltially permitted by the auxiliary lug, 110 extvendinginto One of the notches, 30, but further movement of the shaft is prevented by the Sh0i1l'der,,lj0

abutting'against the top of the plate, 26. r

This will of course; for aninstant causethe 1 manipulatorto' believe that the setting of the complete turns :to lnsure thatthe tumblers, 11,12 and 13, are in-dri vingengag'ement --'-kneb. Alfurther attempt to locate the"set Patented July 28, 1931 UNITED STATES PATENT oFFicE HARRY S. GOLDEN, OF FLINT, MICHIGAN, ASSIGNOR TO, GENERAL MOTORS CORPORA- 7.

TION, OF DETROIT, MICHIGAN, A CORPORATION OF DELAWARE STARTING CRANK Home: CLOSURE Application filed September 17, 1928. Serial No. 306,471.

This invention relates to a device for closing the opening in the lower portion of the radiator through which the hand starting crank may be inserted, and at the same time 5 closing an opening in the forwardend of the engine through which the starting crank also passes. Since there is apt to be considerable variation in the distance between the radiator and the engine, due to manufac- 10 turing and assembly errors, it would not be feasible to use a non-yieldable cap to close both openings. 7 V

' An object of the invention, therefore, is to provide a closure assembly comprising two 15 sections, movable relative to each other to compensate for variations in the distance between the front of the engine and the radiator on difierent cars. One of these sections closes the opening in the forward end of the engine and the other the opening 111 the lower portion of the radiator. These sections are so connected together that they may be inserted or removed as a unit.

Other objects and advantages will be apparent upon referring to the specification and accompanying drawings, in which:

Fig. 1 is a fragmentary vertical longitudinal section.

Fig. 2 is'a detail perspective view of the closure showing some of the various parts disassembled from each other.

Fig. 3 is a section taken on the line 3-3 of Fig. 1.

Fig. 4. is a detail sectional view of that 35 part of the radiator assembly to which the closure is secured.

The numeral 10 indicates an internal combustion engine provided with the usual crankshaft 12. In case of failure of the electrical starting apparatus, some means must be provided to crank the engine by hand. Accordingly astarting crank aw 14 is threaded onto the forward end of the crankshaft 12. In order to prevent leakage 5 of oil from the engine and also to prevent dirt from getting in, a seal is provided at this point. This seal comprises a piece of felt 16 which is held between stampings 18 and 20, the latter being pressed in an aperture in the timing gear compartment cover 22. An oil slinger 24 is secured to the crank shaft to assist in preventing the escape of oil at this point.

The timing gear compartment cover 22 ex tends forwardly of the engine andserves as the frontsupport forthelatter, being fastened to the frame cross member 26 by means of the bracket28. An aperture 30 is pro vided in the forward end of this cover to permit the insertion of the starting crank.

' Located in front of the engine is the radi ator 32, comprised of'the core portion 34 and a-lower tank 36. The radiator coreexten'ds down to the top of the tank 36, but to improve the appearance of the radiator, an imitation radiator core 38 extends down below the core 34 and in, front of the tank 36,concealing the latter and increasing the apparent height of the radiator. This imitation core is formed from a stamping which is perforated and bentto simulate the appearance of the regular core 34. 1

Due to the location of the tank 36'and the imitation core 38, it is necessary to pro vide an opening for the starting crank to pass through. Accordingly a tube 40 is secured in the tank 36. An opening of approximately the same diameter as the tube 40 is provided in the imitation radiator'core 381 In order to close the opening in the imi-' tation core 38 and also the aperture 30 in the forward end of the cover 22, I have devised my improved closure. This consists of a knurled cap 46 which is spun over a cup-shaped member 48 as at 50. Riveted to the cup-shaped member 48 is an outer sleeve 52 wl1ich is cylindrical in shape and. which has slots .54 formed in it. spring member 56 is also riveted to the cup-shaped member 48 and the outer sleeve 52, and has arms 58 which pass through the slots 54 and engage cam-shaped members 60 which are formed on'a collar 61 which is secured in a depression formed in the front side of the tank 36. This is the usual bayonet type of connection and it will be obvious that as the cap assembly is twisted the arms 58 will ride up on the cam-shaped portions 60 and will with but movable relative to the first closure, and spring means adapted to force said resilient material against the other member for the purpose of closing the aperture in said other member.

7. A closure organization comprising, in combination, a member having an aperture formed therein, a second member located adjacent said first member and having an aperture formed therein, a closure adapted to be secured to one of said members to close the aperture therein, a second closure including a piece of resilient material associated with but movable relative to the first closure, spring means adapted to force said resilient material against the other member for the purpose of closing the aperture in said other member, and means to limit movement of the second closure relative to the first when said closures are removed from the apertures in the members.

8. A closure organization comprising, in combination, a member having an aperture formed therein, a second member located adjacent said first member and having an aperture formed therein, a closure adapted to be secured to one of said members to close the aperture therein, a second closure con-,

nected to but movable axially with respect to the first closure and adapted to close the aperture in the other member, spring means tending to move said second closure away from the first for the purpose of holding it tightly against the member against which it abuts, and means adapted to limit the movement of the second closure away from the first when the closures are removed from the apertures in the members.

9. A closure organization comprising, in combination, a member having an aperture formed therein,'a second member located adjacent the first member and having an aperture formed therein, a closure adapted to be secured to one of said members to close the aperture therein, a sleeve carried by said closure, a second closure having portions adapted to be mounted in telescopic relation to said sleeve, means for urging said second closure away from the first closure and against the other member whereby the aperture in the latter will beclosed, and means associated with the sleeve and the portions on the second closure adapted to limit move: ment of the second closure away from the first when the closures are removed from the apertures in the members.

10. In combination, with apparatus having spaced inner and outer members provided with substantially aligned openings to be closed, opposed cam portions carried by said outer member and associated with the opening therethrough, and a closure structure for said openings, said structure including a body member, a locking member secured thereto and adapted for detachable locking connection with the cam portions associated with the opening of sald outer member, a closure device for the opening of said inner member carried by said body member and adjustable toward and from the latter, and a spring interposed between said closure device and said locking member and normally maintaining, said closure device in its most remote portion of adjustment relative to said'body member.

ing said closure device in its most remote position of adjustment relative member. 7

12. In combination'with apparatus having spaced inner and outer members proto said body vided with substantially aligned openings to be closed, a closure member for each of said openings, means connecting said closure" members and permitting the spacing therebetween to be varied, means for releasably' locking one of said closure members in position to close the opening of said outer member, and spring means for pressing the other of said closure members into position to close the opening of said inner member.

In testimony whereof I affix my signature.

HARRY S. GOLDEN. 

